Suzuki Grand Vitara SQ416/SQ420/420WD

since 1998 release

Repair and operation of the car

Suzuki Grand Vitara
+ General information
+ Maintenance and lubricant
+ Heater, ventilation and conditioner
+ Steering
+ Suspension bracket
+ Wheels and tires
+ Forward driving shaft / bearing of a shaft. Oil epiploon
+ Driveshafts
+ Brake system
+ Engines
+ Fuel system
+ System of ignition
+ System of start
+ System of release
+ Transmissions
+ Coupling
+ Transfer
- Forward and back differentials
   - Forward diffrentsiat
      + General description
      - Diagnostics
         - Diagnostic table
            Differential module
            Table of diagnostics of a control system of the four-wheel drive
            Verification of the scheme of control of the four-wheel drive
      + Service out of a workshop
   + Back differential
+ Windows, mirrors, locks and security measures. Immobilizer
+ Electric equipment

Diagnostics

Diagnostic table

Differential module

State	Possible reason	Elimination
Noise of gear wheels	Old lubricant or impurity of water in it	Replace lubricant
	Insufficient lubricant	Add
	The side gap between the leading gear wheel of conic transfer and a gear wheel is badly adjusted	Adjust
	The wrong contact of teeth in a hook between the leading gear wheel and a gear wheel	Adjust or replace
	Fixing bolts of a gear wheel of conic transfer are weakened	Replace or tighten
	The side gear wheel (gear wheels) or the side tooth gearing is damaged	Replace
Noise of the bearing	(Constant noise) Old lubricant or impurity of water in it	Replace lubricant
	(Constant noise) Insufficient lubricant	Add
	(Noise at a setup) the bearing(s) of a conic gear wheel Is damaged	Replace
	(Noise at turn) the side bearing(s) of differential or the bearing(s) of an axis Is damaged	Replace
Oil leak	The oil epiploon is worn-out or damaged	Replace
	It is too much oil	Adjust oil level
	Bolts of the holder of differential are weakened	Replace or tighten
Error of the switch of the full drive \drive on two wheels	Faulty actuator	Replace
Error of the switch of the full drive \drive on two wheels	Malfunctions in a control system of the four-wheel drive	Check how it is described in the Table of diagnostics of a control system of the four-wheel drive